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Jeep Liberty: Problems & Solutions
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Comments
Over the last 5000 miles aprox i have noticed the following intermittent problem.
If i use the car for a short trip it sounds like the engine is going to vibrate its self off the mounts and its as if it isn't producing full power. It can be difficult to pull away from lights etc at sufficient speed once moving its not a problem. It seems to be worse during damp weather.
Other times it works fine though this seems to be occurring more frequently. And the engine can be hot or cold.
I had the car serviced last month but the problem has persisted.
Has anyone experienced the same problem ? any ideas would be appreciated as i am considering going to the dealer with this one.
I'm thinking of either an engine compression loss (vibrations when cold) or a 'dirty' air mass-flowmeter sensor (less power during damp weather). Have you tried to remove the air filter when the engine is running cold?
If you mean fuel consumption that seems to be normal.
And no i havent tried removing the air filter.
Where is the sensor located so i can check to see if it needs cleaning.
Regards
Thanks
I hate the stealership. they will rip you off left and right. The only reason I went to them is because on my 03, I purchased the extended warrantee. A complete waste of money I might add! Last month I got rid of my 03 and got an 05 renegade. I swore I wouldnt get another jeep but 0% financing and 2k cash back. it was an offer I couldnt refuse..I love the liberty that much that I gave it a second chance, plus I thought it would be a good time to unload my 03 with the great offers. I know, call me dumb....but I didn't purchase the extened warrantee so I wouldnt have to feel like I am trapped at the stealership when things go wrong. I know great mechanic and he is very fair with pricing.
By the way ajp3, 34k miles for new brakes is great. I had to get my done at 15k then again at 30k so consider yourself lucky in that sense.
good luck.
Before removing the sensor, perhaps you could get a good idea of the cleanliness of the inside of the manifold by opening the intercooler hose. If there is any 'sticky' substance in there you have a potential problem.
I have a 2002 Jeep 3.7 w/75k miles. I hate my engine..not only have I lost the coils in cylinder 2 & 4, it spit out the rocker arm. Now I have this knocking in my engine...it's the push rod and the lifter collapsed. Replaced the lifter, push rod and also the rocker arm...took it back..not 30 miles later and my chck engine light is on. Shut off the vehicle...restarted it and low and behold...it sounds like crap again and the knock is back. Again, the damn engine spit out the rocker arm and the lifter collapsed. I've had it back & forth since 4/8 and no resolution. The only way to get rid of this heep is to trade it in back to Jeep....no one will take it with a check engine...I went to Jeep yesteday .. told them I'd give them an '02 for an '05. They didn't seem to concerned about the chck engine light...told them what I've had done..showed them all my recpts and the mechanic just shrugged...seems it's a 3.7 engine problem and I'm waiting for a recall notice.
Average MPG = 17.61
Standard Deviation of 0.72
Maximum MPG since I bought it new = 19.51
Avg MPG in winter months with oxygenated gas = 16.6
Avg MPG in summer months = 19.0
Avg MPG on extended spring road trip - 100% highway = 21.8
Avg MPG for total mileage = 17.8
I have tried running without an air filter and it is running smother with better acceleration.The old filter was rather dirty so i am getting and fitting a new one tomorrow the filter box was full of dirt too.Unfortunatly i left it too long to confront the dealer (1500 miles) as i find it hard to believe they changed the old one.
Further to my original problem if i start the engine from cold there is virtually no power for almost a minute ( I have to wait). Then to pull away it takes a lot of revs and after 1/2 mile or so it is ok.
In years gone by, I owned vehicles with choke problems. Could it be something as simple as whatever fuel injection has as the equivalent of a choke? Some of mine were even manually choked cars and you had to learn how fast to slide the choke lever back in.
Is there a butterfly valve at the air intake that slowly opens as the engine warms up?
Sometimes I miss carburetors.....but not for long.
My advise to everyone is to call that 800 number and [non-permissible content removed]...it worked for us.
And, as far as the 34,000 on the brakes, it's her car not mine. She drives like she's got an egg on the pedal.
Thanks
The dealership is not finding this to be a problem and doesn't seem able to fix it.
I was pulling away from a red light today and pressed the accelerator. There was a two second delay, then - CLUNK- it went in to gear. The RPMs were high enough to squeal the tires on the pavement when it went in to gear. It had failed to change into first at the red light after I had already driven about 10 miles in DRIVE. Is this a problem inherent in this model or is this on a quick road to the shop?
This is my third jeep product. The last one was a Wrangler which I put 106,000 miles on with only one shop visit: a power steering pump replacement. Do I need to rethink about another Jeep product? This problem seems pretty bad.
To make it look better, smooth sand paper to deburr locally and then let the sun bring back the color. If you try to melt the plastic it's even worse, and then you will want to change it. Fine sandblasting will do a nice job, but again the sun needs to do it's work. All plastic cleaning solutions will make you see the difference with more contrast (I got the info from a body repair shop).
The service person at the dealership said that it looked like the oil hadn't been changed for 20,000 miles, and they had to take the engine apart to see how extensive the damage was. The oil had been changed at the end of February. How can this be? Wouldn't a problem this serious be noticed by those changing the oil?
The other thing is, I was told that the engine would have to be built from parts because it is a short block, and it is not standard. Could someone help me decipher this?
Any advice appreciated.
thanks
In my case the parking brake cable had rubbed through the wires leading to the sensor. after taping up the open wires i went to replace the speed sensor (purchased from auto zone) and it wasn't the correct part! After having them order the second part and waited yet another day.. still not correct part (especially since i knew what it mine looked like) the manager explained that it appeared jeep changed the sensor out mid year.. yet both parts listed/selling were incorrect. Also.. O'Rielly and PepBoys dont even carry the part.. I am now on the hunt online but may have to go to the dealership.. (which needed to order the part as well) ugh!!!
My 02 does the same thing from time to time. I was worried enough about it to take it to a dealer and have it checked out. I trust the technician who checked it out and he told me that he coudln't find any problems with the transfer case or rear differential, but both pinion seals were leaking on the differentials. This cost me about $400 to have them replaced.
Since the dealership is unwilling to help me resolve this, I'm left to looking to insurance companies and junk yards for a low mileage 3.7. Any helpful suggestions out there?
Thanks, JeepHeadache
In the first 400 miles it is getting 12-13 miles per gallon mostly suburbs/country roads. Is this normal?
The salesman said that the Jeep needs to be broken in for 2,000 to 3,000 miles before the MPG will get better. Does this seem reasonable to anyone out there? I read posts that tell of having a reflash/reprogram of the computer that has helped in their cases. I would just like to know if other owners are getting low MPG.
The Air conditioning stopped working in our 2002 Liberty (41K miles). It's at the dealer right now, and they think it is the compressor?
Anyone else have this happen? Apparently the cost will be around $750.
Not a good day. I'm also having them do the 45K maintenance today @ $265.
Will keep you posted
Jim
I believe the 17 inch rims make an additional help in mpg as well. I have yet to use any oil that I can tell between oil changes, and I now have 9,300 miles on it. So your salesperson is right, but you might check to see if your Liberty is one needing to be reprogramed. I hope you enjoy your Liberty as much as we do ours.